Speech Accent Detection

• Description: Everyone who speaks a language, speaks it with an accent. This project define accent for english language speakers
• Result: Created and tested the Speech Accent Classification system for native and non-native speakers, with recall 99%
• Link: https://github.com/speech-accent-detection

asr - automatic speech recognition

• Description: Implemented and retrained Mozilla DeepSpeech library for Automatic Speech Recognition. Mozilla ASR is an open source Speech-To-Text engine, using a model trained by machine learning techniques based on Baidu’s Deep Speech research paper.
• Result: Created and tested the ASR system with for British accent 82% and American accent 86% accuracy.

Text classification project

• Goal: Classified to 10 different topics.
• Data sourses:
  • Title: 5-10 words
  • Description: 20-50 words
  • Text1: 200-400 words
  • Text2: 600-1500 words
• Method: LDA
• Result: 10 topics and 10 subtopics.
  Accuracy 87%

Intro

Based on these five stages, appropriate projects to increase and retain customers.

The customer lifecycle includes 5 below stages:

1. Reach — claim future customers’ attention;
2. Acquisition — bring them into a sphere of influence;
3. Conversion — turn them into registered instead of paying customers;
4. Retention — keep them as customers;
5. Loyalty/advocacy—turn them into company advocate

http://mts.intechopen.com/articles/show/title/consumer-life-cycle-and-profiling-a-data-mining-perspective

Reach: Traffic Profile System

Acquisition - Reactivated Leads Points System

• Goal: Improve overall sign-up rate of reactivated leads.
• Data sourses: landing page data, device, location, estimated age, landed time etc.
• Method: Random forest
• Result: Increased sign-up rate by two times.

Conversion - Customer Renewal

• Goals: Improve overall renewal rate; Summarise main factors; Esitmate quantity and duration of phone calls during contract life time.
• Data sourses: class data; teacher and student data.
• Method: Random forest (Boosting)
• Result: Increased renew rate up to 30%.

Retention - Customer Churn (Karma)

• Goal: Decrease client refund rate; Create possible refund lists with estimated rate.
• Data sources: Class data, teacher and student data.
• Methods: Extra-Trees.
• Result: Decreased refund rate to 27%.

Intro

I worked for Domus Sapiens and programmer/data analytic/project manager. Did the design and programming job of the smart systems in the intelligent building, and one individual completes a complete set of processes. The smart buildings/city I’ve done dozen large and small, concentrated in Moscow and St Petersburg. One of the most famous and complex cases is the development of an intelligent system in Moscow City.

http://http://domussapiens.ru/

Moscow City

• Moscow City Project, which is made by 5 different office building groups with different requirements to smart system & linking.
• Companies main job is to make computer programming of center control & night light adjustment.
• More then 800 m2
• 15000 signals from different controllers

Smart old style apartment

• Automation of lighting, curtains, ventilation,
• Leakage monitoring
• The control of home theater from tablet and computer
• Seamless Wi-Fi network

Smart Penthouse

• Controlling systems: lighting, climate, media systems and access control without pushing a button.
• Media systems should works with voice
• Lighting and climate with radio signal (on body or on mobile phone)
• Smart system work in KNX protocol, the radio work on Modbus and voice control protocol was Fast Ethernet.
• Connected all subsystems in one system with two controller AMX and Crestron

Smart Villa

• The main task, which stood in front of our company - modernization of the existing smart home system
• Upgraded equipment and expand the functions of the system
• Installed portable AMX touch panels and iPad system management
• Integrated smart home irrigation system and curtains drives by a radio channel
• This project was marked by the award of AMX in 2011